Combined beater and shutter for motion-picture machines.



N. T. NILSSON. COMBINED BEATER AND SHUTTER FOR MOTION PICTURE MACHINES.

APPLICATION FILED MAR. 3. 1917.

Patented Nov. 6. 1917.

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NICHOLAUS '1. NILSSGN, OF CHICAGO, ILLINOIS.

COMBINED BEATER AND SHUTTER FOB, MQTIQN-PIGTURE MACHINES.

Application filed March 3, 1917.

1 0 all "whom it may concern Be it known that I, NICHOLAUS T. N1Ls- SON, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Combined Beaters and Shutters for Motion-Picture Machines, of which the following is a specificatio-n.

This invention relates to a motion picture machine in which the beater and the shutter have continuous rotary movement and the heater is arranged to come in contact with the picture film of the machine during a portion of each revolution of said beater, and thereby give the desired step by step movementto said film.

The objects of this invention are to obtain a combined beater and shutter which is pro vided with readily operable means to adjust the position of the beater relative to the shutter; to obtain a device of the kind named which is not liable to get out of adjustment; toobtain a device which is easily installed in a motion picture cabinet having a vertical side wall, and a device in which, when a desired adjustment has been obtained between the beater and the shutter, said adjustment will not be liable to change.

I have illustrated a device embodying this invention in the drawing accompanying and forming a part hereof in which Figure l, is an end elevation of said device showing the shutter in edge view.

Fig. 2, is taken on line 2-2, of Fig. 1. viewed in the direction indicated by the arrow, and

Fig. 3, is an elevation, with the several parts of the device in the same relative position as is illustrated in Fig. 2.

Fig. 4, is a top plan view of a portion of the shutter of the device showing an end view of the upper end of the shutter shaft.

A reference character applied to designate a given part indicates said part, wherever the same appears throughout the several figures of the drawing.

A, represents a portion of a vertical wall to which the base B is illustrated as attached by means of the bolts C.

Base B, supports the journal bearing D, and step bearing (Z, said bearings being illustrated as integral with said base in Figs. 2 and 3. E and F respectively represent shafts. G, represents a pulley and g, represents a gear, both of which are mount- Specification of Letters Patent.

Patented Nov. 6, 1917. Serial No. 152,378.

ed on shaft E, and secured thereto. Shaft F is journaled in bearing D. Shaft F is journaled at its lower end in step caring (I. H, H represent intermeshing beveled which are rigidly secured on shafts E. F. respectively.

I represents a shu ter which is rigidly secured to the upper end of shaft F, as by the hub J, of said shutter, and squared end 7' of said shaft (see Figs. 1 ant. a;

Pulley G is a driven wheel, by means of which said shaft E, gear wheels g, H, there on, gear H on shaft F, said shaft, shutter I on shaft F and the hereinafter described beater K are driven. Gear 9 drives the iihn sprocket wheel of the film actuating mechanism, (not shown as it forms no part of this invention).

K, represents the beater of the device, which is loosely mounted on shaft E. 7c. represent the end portions of the beater, which come contact with the film which is moved by said beater. L, represents a gear wheel which is secured to beater K. as by screw Z, and is loosely mounted on shaft E.

M, represents an arm which is rigidly mounted on shaft E and is illustrated as secured thereto by pin m. m represents an abutment on arm M. N, represents a shaft, which is rotatably and longitudinally movable in arm M. n is a manually operable wheel which is rigidly secured to shaft N,

and O is a gear wheel rigidly secured on shaft N, to intermesh with gear wheel L.

is a spring which yieldingly holds the wheel a, shaft N, and gear wheel 0 in the position illustrated in full lines in Figs. 2 and 3; and when said parts are in said position they are locked from rotation by abutment m which is, at such time, in engagement with the teeth of gear wheel 0.

The beater K is adjusted relative to the shutter J by turning said beater on shaft E; said shaft E, together with shaft F, and shutter 1, remaining stationary. To make said adjustment of beater K the manually operable wheel a is forced inward against the resiliency of spring P, and shaft N is thereby moved longitudinally, carrying gear wheel 0 out of engagement with abutment m. Said wheel a, shaft N, and gear 0 are then rotated, by means of wheel n, and rotation of said gear 0 rotates gear L (said gears O and L at all times intermeshing) on shaft E. The gear L being secured to beater K, said beater is by the aboverecited operation turned on shaft E, (said shaft E and shutter J, as above recited, remaining stationary), and an adjustment is easily effected whereby the beater K film which is actuated thereby at the roper time relative to the operation of the s iutter,

(when the shutter stops the light from the film).

I claim:

1. A combined shutter and heater for motion picture machines, consisting of bearings, shafts rotatably mounted in said bearings and intermeshing gears connecting said shafts, in combination with a shutter rigidly mounted on one of said shafts, a beater mounted on the other one thereof, means to angularly adjust said beater on its shaft and means to retain said beater in its adjusted position.

2. A combined shutter and beater for motion picture machines, consisting of bearings, shafts arranged substantially at an angle of ninety degrees, and, rotatably mounted in said bearings and inter-meshing beveled gears connecting said shafts, in combination With a shutter rigidly mounted on one of said shafts, a heater mounted on the other one thereof, means to angularly adjust said heater on its shaft said means comprising the combination of a gear atwill move the tached to said heater, an arm attached to said shaft, a shaft rotatably mounted in said arm, and arranged to be manually turned, a gear on said last named shaft intermeshing with the gear attached to said beater, and means to retain said beater in its adjusted position.

3. A combined shutter and beater for motion picture machines, consisting of bearings, shafts rotatably mounted in said bearings and intermeshing gears connecting said shafts, in combination with a shutter rigidly mounted on one of said shafts, a beater mounted on the other one thereof, means to angularly adjust said beater on its shaft said adjusting means comprising the combination of a gear rigidly attached to said beater, an arm rigidly mounted on said heater shaft, an abutment on said arm, a manually operable shaft journaled in said arm and rotatably and longitudinally movable, a gear rigidly secured on last named shaft to intermesh with the gear which is attached to said beater, and to engage with.

said abutment when the shaft thereof is in one of its longitudinal positions.

NICHOLAUS T. NILSSON.

In the presence of CHARLES TURNER BROWN, J. SCUDDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner oi Patents. Washington, D. 0.

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